Fix a Leaking Outdoor Faucet Before Installing Drip Irrigation

A leaking outdoor faucet isn't just wasteful—it's a problem waiting to compound itself. Once you hook up a drip system to a leaking faucet, you've locked in water loss on a schedule, potentially flooding the soil around your foundation or creating conditions for rot and pest problems. The good news is that outdoor faucet leaks are almost always fixable in under an hour with basic tools. Most come down to a worn-out washer or a packing nut that's simply come loose from weather and use. Get this right before you connect your drip lines, and your system will run clean and efficient for years.

1. Find and Close the Shutoff. Find the water shutoff valve for your outdoor faucet. This is usually located inside the house where the line exits the wall, or in a frost-proof faucet's interior mechanism. Turn the shutoff clockwise until it stops—don't force it. If you can't find an exterior shutoff, you may need to use the main house shutoff instead.
2. Release Water Pressure. Open the leaking faucet fully to release any residual water pressure in the line. Leave it open for 30 seconds, then close it. This prevents water from spraying when you begin disassembly.
3. Loosen the Packing Nut. Using an adjustable wrench, grip the hexagonal packing nut located directly below the faucet handle (on a standard outdoor faucet). Turn counterclockwise about a quarter turn—roughly 90 degrees. Stop immediately if you feel strong resistance; you're not trying to remove it completely, just loosen it slightly.
4. Check for Leaks. Turn the shutoff valve back on slowly. Open and close the faucet handle three or four times, watching where the handle stem meets the body. If water is no longer trickling from that joint, you've solved the problem—the packing nut was loose. If water still leaks, proceed to the next step.
5. Remove Handle, Access Stem. If tightening didn't work, shut off the water again and drain the line. Look for a screw or setscrew on the handle itself (often hidden under a cap or cover). Remove it, then pull the handle straight off. You'll now see the valve stem—use your wrench to turn the stem counterclockwise until it stops, but don't force it.
6. Swap Out the Washer. Once the stem is removed, you'll see a small flat washer at the base (the culprit in most leaks). Pop it out with a flathead screwdriver and replace it with an identical new one from your hardware store. While you're inside, replace the O-ring or packing material around the stem if it looks cracked or hardened.
7. Reassemble and Test. Screw the stem back in by hand until finger-tight, then use your wrench to turn it another quarter turn. Slide the handle back on, secure the setscrew, and turn the water back on. Open and close the faucet several times under full water pressure. Check both the handle stem and the spout for any drips.
8. Attach Drip Line. Once you've confirmed the faucet is dry for at least two full on-off cycles, you're ready to attach your drip line. Use a hose clamp or the faucet's threaded outlet to secure the line, depending on your faucet type. Run water through the drip system for a minute to confirm it's flowing properly before covering or burying any lines.